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841664AGI

更新时间: 2024-02-22 17:09:40
品牌 Logo 应用领域
艾迪悌 - IDT 时钟发生器
页数 文件大小 规格书
16页 307K
描述
FEMTOCLOCK™ CRYSTAL-TO-HCSL CLOCK GENERATOR

841664AGI 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP, TSSOP28,.3针数:28
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.32
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
长度:9.7 mm端子数量:28
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:156.25 MHz封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP28,.3
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):225电源:3.3 V
主时钟/晶体标称频率:25 MHz认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Clock Generators
最大供电电压:3.465 V最小供电电压:3.135 V
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:6.1 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

841664AGI 数据手册

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PRELIMINARY  
FEMTOCLOCK™ CRYSTAL-TO-HCSL  
CLOCK GENERATOR  
ICS841664I  
GENERAL DESCRIPTION  
FEATURES  
The ICS841664I is an optimized sRIO clock  
• Four differential HCSL clock outputs: configurable for sRIO  
(125MHz or 156.25MHz) clock signals  
ICS  
HiPerClockS™  
generator and member of the HiPerClocks™ family  
One REF_OUT LVCMOS/LVTTL clock output  
of high-performance clock solutions from IDT.  
The device uses a 25MHz parallel crystal to gen-  
erate 125MHz and 156.25MHz clock signals,  
• Selectable crystal oscillator interface, 25MHz, 18pF parallel  
resonant crystal or LVCMOS/LVTTL single-ended reference  
clock input  
replacing solutions requiring multiple oscillator and fanout buffer  
solutions. The device has excellent phase jitter (< 1ps rms) suit-  
able to clock components requiring precise and low-jitter sRIO  
clock signals. Designed for telecom, networking and industrial  
applications, the ICS841664I can also drive the high-speed  
sRIO SerDes clock inputs of communication processors, DSPs,  
switches and bridges.  
• Supports the following output frequencies:  
125MHz or 156.25MHz  
• VCO: 625MHz  
• PLL bypass and output enable  
• RMS phase jitter, using a 25MHz crystal (1.875MHz - 20MHz):  
0.35ps (typical) @ 125MHz  
• Full 3.3V power supply mode  
• -40°C to 85°C ambient operating temperature  
• Available in both standard (RoHS 5) and lead-free (RoHS 6)  
packages  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
XTAL_IN  
VDD  
REF_OUT  
GND  
1
2
3
4
IREF  
28  
27  
26  
25  
QA0  
1
0
OSC  
FSEL0  
FSEL1  
QB0  
nQA0  
XTAL_OUT  
REF_IN  
FemtoClock  
QA0  
0
PLL  
÷NA  
Pulldown  
Pulldown  
VCO = 625MHz  
QA1  
nQA0  
VDDOA  
GND  
QA1  
24  
23  
22  
21  
20  
19  
nQB0  
VDDOB  
GND  
5
6
7
8
1
nQA1  
REF_SEL  
IREF  
QB1  
nQB1  
MR/nOE  
9
nQA1  
nREF_OE  
BYPASS  
REF_IN  
REF_SEL  
M = ÷25  
QB0  
10  
11  
12  
13  
VDD  
18  
17  
16  
15  
nQB0  
XTAL_IN  
XTAL_OUT  
GND  
÷NB  
QB1  
Pulldown  
Pulldown  
Pulldown  
14  
BYPASS  
VDDA  
nQB1  
FSEL[0:1]  
ICS841664I  
28-Lead TSSOP  
6.1mm x 9.7mm x 0.925mm  
package body  
MR/nOE  
REF_OUT  
G Package  
Top View  
Pullup  
nREF_OE  
The Preliminary Information presented herein represents a product in pre-production.The noted characteristics are based on initial product characterization  
and/or qualification.Integrated DeviceTechnology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.  
IDT/ ICSHCSL CLOCK GENERATOR  
1
ICS841664AGI REV. A JANUARY 30, 2009  

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